body{
    background-color: #999999;
}
.choose{
    bottom: 54px;
    position: fixed;
    border: 1px solid #fff;
    border-radius: 10px 10px 0 0;
    height: 268px;
}
.choose .up{
    height: 44px;
    color: #999999;
}
.choose .item{
    height: 56px;
    color: #2561ef;
    font-size: 18px;
    border-top: 1px solid #ececec;
}

.cancel{
    bottom: 0;
    position: fixed;
    height: 50px;
    color: #999999;
}